Sapphire Wafer Back Grinder from Mexico
Backside grinder for sapphire (Al2O3) substrates used in LED/GaN semiconductors, thinning wafers to device specs. HTS 8464.90.0120 as cold working glass-like mineral materials. Key for optoelectronics.
Duty Rate — Mexico → United States
12%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Prove sapphire semiconductor use vs. gem/watch applications
• Thickness control specs critical for classification
• Anti-dumping vigilance for Asian sapphire equipment